Questions tagged [ibm-pc]

For questions about the early IBM PC, clones and compatible systems.

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27
votes
10answers
15k views

How to get started writing C for the IBM PC in 1980-81

Suppose it's late 1980 to early 1981, you've got some software you want to write for the IBM PC which will be released later in 1981, want to get started ASAP, and believe C is the right language for ...
7
votes
1answer
2k views

Windows 95 boot disk cannot detect my CD-ROM drive

I have an IBM 466 DX2 with the default CD-ROM drive installed like normal. I wanted to install Windows 95, so I first tried to install on top of the version of DOS already on the hard drive. It had ...
18
votes
2answers
2k views

What was the first C compiler for the IBM PC?

When did a C compiler first become available for the IBM PC? I have fond memories of Turbo C, but that didn't become available until the mid to late eighties; it definitely wasn't the first one. ...
7
votes
2answers
398 views

Is it safe to provide 5V to CMOS RAM from PSU instead of CR2032 battery?

I have a motherboard which stores BIOS settings in a DS12887 chip with internal battery. The battery is long dead, and the pin of chip's socket is not connected to any power supply so the chip doesn't ...
7
votes
4answers
605 views

Cost of expansion slots

Among other early computers, the Apple II and IBM PC made the consequential decision to provide internal expansion slots. How much did this add to manufacturing cost? Intuitively, it seems like it ...
30
votes
5answers
3k views

Does every retrocomputer and console with NTSC composite output have 'artifact color' ability?

Artifact color is heavily associated with the Apple ][, since that is the only method the machine had to produce a color display. I was looking at the fantastic demo for IBM PC + CGA, 8088MPH, and I ...
4
votes
1answer
386 views

Using a 1995 model M with a modern setup

Looking to get my Model M keyboard working on a modern setup, I believe I need an active converter to go from PS/2 to USB. What adapter / part would be compatible with this keyboard?
8
votes
3answers
822 views

Does the 25-pin IBM PS/1 serial port connector contain two serial ports?

I got my hands on an IBM PS/1 computer and it provides a 25-pin serial port connector. Whith the help of an adapter I can get a 9-pin serial port on COM1 and transfer data that way. I would like to ...
28
votes
2answers
2k views

Why did connecting the IBM PC 3.5" FDD backwards cause the problems it did?

When the 3.5" FDD was introduced for the IBM PC and compatibles (or possibly earlier), someone made a decision to make the data cable between the controller and drive unkeyed. This, of course, meant ...
3
votes
1answer
706 views

Installing hdd on PhoenixBIOS A486 on Gateway 2000 4DX-33

I'm fixing up a Gateway 2000 4DX-33 which came with a Fujitsu hard drive. The CMOS battery was dead after over 20 years without use, and needed to be replaced. This meant that all BIOS settings were ...
3
votes
2answers
260 views

IBM PS/2 Model 53 Not Powering On

I bought a PS/2 with the intent of robbing it's case for a restomod project, but since that is on the backburner right now I decided to see if it would work. When I flip the power switch, the PSU ...
1
vote
1answer
150 views

Memory timings for a 430VX mainboard

I'm trying to troubleshoot a memory-detection problem on an old Pentium MMX system with a 430VX chipset. I've got the following memory timing options in the BIOS: DRAM Precharge Wait State: 0, 1 ...

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